https://doi.org/10.1051/epjconf/20136015002
Measurement of γ from B → DK decays at LHCb
Technische Universität Dortmund, Experimentelle Physik V, 44227, Dortmund, Germany
a e-mail: maximilian.schlupp@tu-dortmund.de
We report results from the first measurements of the CKM angle γ using B → DK decays with the LHCb experiment. Three well established methods are used to extract the CP observables. The updated measurement of γ in the three-body D0 Dalitz space results in γ = (57±16)°. When combining the observables from all B → DK studies, the best fit value for γ ∈ [0, 180]° is γ = 67.2° with γ ∈ [55.1, 79.1]° at 68%CL and γ ∈ [43.9, 89.5]° at 95%CL. This represents the most precise values directly measured by a single experiment. Furthermore, a new time-dependent approach using Bs0 → Ds±K± decays is used for the first time to measure CP observables and future prospects for γ at LHCb are given.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
